NI 5114/5122/5124/5142 AC/DC/GND Coupling

NI High-Speed Digitizers Help (NI-SCOPE)

Edition Date: January 2017

Part Number: 370592AB-01

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NI-SCOPE (English | Japanese)

You can select AC, DC, or GND input coupling for the 1 MΩ input path, and DC or GND input coupling for the 50 Ω input path. Select AC-coupling if the input signal has a DC component that you want to reject, provided that you are not concerned about low-frequency flatness. A DC input offset adjustment is available if the signal you want to measure is below this limit, or if you are using the 50 Ω path.

Ground coupling disconnects the input channel from the signal connected and internally connects the channel to ground to provide a ground reference.

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